Linux Disk space

Need a script to Monitor disk space alert in Linux servers.

I need to run the script for one server and collect the results(HTML Out Put with colour ) of all the server and created a consolidated report with the below columns

Server IP Volume name volume %
Naranthiran DSystem AdministratorAsked:
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nociSoftware EngineerCommented:
you can parse the output of df and convert it to html.
Shiju JacobInfo Security ManagerCommented:
below is a script which mail if crosses 90 %

df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output;
  echo $output
  usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1  )
  partition=$(echo $output | awk '{ print $2 }' )
  if [ $usep -ge 90]; then
    echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" |
     mail -s "Alert: Almost out of disk space $usep%"
Are the systems in the same location, you can configure SNMP, snmptrapd with notifications.
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Owen RubinConsultantCommented:
From the following website:

CURRENT=$(df / | grep / | awk '{ print $5}' | sed 's/%//g')

if [ "$CURRENT" -gt "$THRESHOLD" ] ; then
    mail -s 'Disk Space Alert' << EOF
Your root partition remaining free space is critically low. Used: $CURRENT%

To run it daily, for example, save the script to the file in your home directory, change the email to your email, and add the following line at the end of /etc/crontab file:

@daily ~/

I think this is basically what Shiju Jacob has said with a suttle difference
Robert LemMrCommented:
Have you thought about using webmin? Free software that can give you all information you need about all your servers on your network
Prabhin MPEngineer-TechOPSCommented:
First create a awk script with following contents,

vi script.awk

    print "<html><body><table  border=\"8\" cellpadding=\"3\"  style=\"border-collapse: collapse\">"

    print "<tr>"
    print "<th bgcolor=turquoise colspan="6">BEFORE_USAGE</th>"
    print "</tr>"
    print "<tr>"
    print "<th bgcolor=gray>MOUNT</th>"
    print "<th bgcolor=gray>SIZE</th>"
    print "<th bgcolor=gray>USED</th>"
    print "<th bgcolor=gray>AVAILABLE</th>"
    print "<th bgcolor=gray>USE%</th>"
    print "</tr>"

NR > 1 {
    if ($5+0 > 70) {
        bgcolor=" bgcolor=azure"
    print "<tr><td>"$6"</td><td>"$2"</td><td>"$3"</td><td>"$4"</td><td"bgcolor">"$5"</td></tr>"

    print "</table></body></html>"

Then use the command to extract the output to html file,

df -Ph | awk -f aa.awk > disk_usage.html

here is the sample output.

and you can attach this file with email .

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Naranthiran DSystem AdministratorAuthor Commented:
Thanks Prabhin ;)
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